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Find Air conditioning pros in Mendham

Avatar for Speer Air
Speer Air
4.6(
165
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 1958

Free estimates

Emergency services offered

"I have used Speer Air for several years for HVAC preventive maintenance at my home. We recently expanded and they installed a package unit to take care of the expansion space. The work was good and they have been back for adjustments as necessary."
Residential Attic Install
Commercial Multi Unit Install
Guardian Series
Response time2 days
Response rate100%
8 neighbors recently requested a quote
Avatar for Ray's HVAC
Ray's HVAC
4.7(
254
)

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Ray's HVAC responded quickly to my request to repair my furnace, which could not start this year. They were able to find and fix the real cause of the issue - a bird net in the PVC pipe which blocked the air flow, and made my furnace is working again!"
New heating system with steam humidifier
Expert equipment rigging
Packaged Trane high efficiency equipment
Emergency replacements
Piping

+1

Response time6 hrs
Response rate89%
109 neighbors recently requested a quote
Avatar for AC & Heat by Kyle
AC & Heat by Kyle
4.9(
114
)

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Emergency services offered

Warranties offered

"I was in desperate need of an AC unit repair and Kyle came to the rescue. Iâ ve owned my home since 2019 and have been looking for and honest and reliable AC technician. Iâ ve used a couple of other technicians but Kyle will be my go to moving forward. He kept me informed of everything he was doing and educated me on how my unit should be running. He even gave me info for what filters I should be purchasing to help my unit run efficiently. He gave me several options with regards to repairs and I went with the higher priced option because it was so reasonable and I didnâ t want to cut corners. I will be scheduling my routine maintenance with him for the summer and winter. Iâ m so happy I finally found an AC technician I can rely on. I highly recommend him."
Canister
Steam Humidifier
Maintenance FOR ALL!!!
Maintenance FOR ALL!!!
Maintenance FOR ALL!!!

+22

Response time7 hrs
Response rate87%
1 neighbors recently requested a quote
Avatar for ABCastello's Heating and Cooling
ABCastello's Heating and Cooling
4.6(
101
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"ABCastello HVAC removed old A/C inside and outside units which were 25 years old from my 2700 sq feet 2 store colonial brick face house. Old units were replaced with new and more efficient units - TRANE 4 ton two stage SEER 17+ ECONET (condenser model RA-1748-AJ2CB, air handler model RH-2T-4821-MEACJA and communicating module Econet STAT model RETS-T601-SYS). Excellent work quality! Fast response! Very reasonable price quote for 10 years parts warranty and 5 years labor and service warranty! Honest and hard working person! All work was done in a couple of days (including old unit removal)! I am very happy and a very satisfied customer of his service for life!!! A+++++"
Air conditioning installation
A/C compressor replacement
410A charging system
Oil-Gas conversion
Propane-Gas conversion

+24

Response time11 hrs
Recommended by95%of homeowners
Avatar for AAA HVAC, LLC
AAA HVAC, LLC
4.7(
189
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"I have never written a review but today it was a MUST. This morning my A.C. was not working I messaged AAA HVAC and within minutes a gentleman "JOE" called me. I explained my air conditioner was not working and with 1/2 hour a young man named "Jay" was he. He was polite, courteous and explained everything to me. NOT ONLY IS THIS COPANY OUTSTANDING BUT, ANYONE LIVING IN THE TRI STATE ARE LOOK NO FURTHER THAN "AAA HVAC FOR EXCELLANT WORK AND TOTALLY PROFESSIONAL. DO NOT HESITATE TO ALL THEM.!!!!!!!! THEY ARE AMAZING. "JOE, AGAIN THANK YOU FOR ALL YOUR HELP, AND TRULY YOU WERE SENT DOWN FROM HEAVEN. !!!!!!!! STAY SAFE AND PRAYERS ARE WITH YOU ALL. AGAIN THANK YOU......"
New installation of mini split units
Rooftop unit
Jay our Technician
Raheem Condensing units
Our trucks at the job site

+12

Response time2 hrs
Response rate88%
10 neighbors recently requested a quote
Avatar for Advanced Heating & Air Conditioning
Advanced Heating & Air Conditioning
4.3(
87
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Nick and the guys were professional, friendly and did an outstanding job! We had them replace our central air conditioning. They did a terrific job. We will continue to use their services for annual Service on our ac and our Furnace. Heating or Cooling. these are the guys to call. Dependability, Expert knowledge and friendly service. It was important to our family to have a service company who will be there after the install and service and maintain our equipment."
Response time30 mins
Recommended by96%of homeowners
Avatar for Dawson Mechanical Contracting
Dawson Mechanical Contracting
4.8(
134
)

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"After getting four or five quotes, from recommendations and Angie's list, we chose Dawson Mechanical to install two new furnaces.  The crew arrived on time and got the first furnace working by the end of the first day and the house warmed up.  The second furnace was completed the second day.  However, the crew forgot to relight the hot water heater.  Dave came back that evening to take care of this small issue.  We would definately use this company again."
Additional Photos
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+20

Response time7 hrs
Response rate99%
10 neighbors recently requested a quote
Dun Rite Heating and Cooling
4.5(
112
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"A++++ Peter is a superstar and his crews are hardworking, courteous and respectful. They moved quickly to remove an old central A/C unit and installed 4 new ecobee thermostats and explained exactly how the process would go. He is so honest and competent and with a ten year labor warranty that his company provides, you'd be crazy to go with someone else. He also was very responsive and extremely fair in pricing, timing and providing his licenses which I requested. I would and will hire him again for any Central A/C needs. He cares about his work and his customers and it really shows."
Response time1 day
Response rate100%
18 neighbors recently requested a quote
Avatar for MDL Electric LLC Cooling & Heating
MDL Electric LLC Cooling & Heating
4.6(
133
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"My first and second floors were on one heating/cooling zone. The second floor was always cold. I wanted to modify the ducts in a minor way to get more air up there, but Gerson convinced me that adding a new zone with its own thermostat and separate ducts and dampers in the basement made more sense. I liked his reasoning, and, 2 days later, he and his guys showed up and did the work. They were extremely responsive, professional, and careful. The new system solved the problem. I did not take the usual steps of getting competitive bids because the reviews for MDL were so positive. Now I concur. I can't say whether the price I paid was competitive, but I paid it cheerfully."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
9 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for air conditioning projects in Mendham, NJ

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Mendham, NJ homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.